Removing header from subpages and posts (homepage only) for Yoko theme

Hi,

I am trying to remove the header from all subpages/pages on my Yoko theme website. The website is http://www.magsyipcopywriting.com.

I’ve tried using custom CSS in a CSS plugin:

.home header img{
display: block;
}
header img{
display: none;
}

But this didn’t seem to work even though it’s worked for other people’s sites. Instead it just removed the header from all pages and removed my logo too.

I have already created a child theme (as the forum moderator suggested). Does anyone know what the next steps are? I can send you the code from the child theme CSS style sheet if that helps?

Thanks in advance for any comments….